I think my sig contains a link (can’t see it on mobile) to my ‘83 Stumpy. It’s mostly original but for the tires, fenders and crankset. I love riding it on gravel and don’t feel sluggish on it. I have ergonomic grips on it bow which have vastly improved hand comfor when spending hours in the saddle. So far my longest ride is about 35 miles, but front loaded for light touring and probably four hours over rough terrain for much of it.